Open AccessThe Effect Of Thickness on The Optical Properties Of ZnS
Author(s) -
Baghdad Science Journal
Publication year - 2007
Publication title -
mağallaẗ baġdād li-l-ʿulūm
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.167
H-Index - 6
eISSN - 2411-7986
pISSN - 2078-8665
DOI - 10.21123/bsj.4.4.647-652
Subject(s) - absorbance , molar absorptivity , materials science , transmittance , refractive index , zinc sulfide , optics , dielectric , attenuation coefficient , band gap , thin film , analytical chemistry (journal) , optoelectronics , zinc , chemistry , nanotechnology , physics , chromatography , metallurgy
Zinc sulfide(ZnS) thin films of different thickness were deposited on corning glass with the substrate kept at room temperature and high vacuum using thermal evaporation technique.the film properties investigated include their absorbance/transmittance/reflectance spectra,band gap,refractive index,extinction coefficient,complex dielectric constant and thickness.The films were found to exhibt high transmittance(59-98%) ,low absorbance and low reflectance in the visible/near infrared region up to 900 nm..However, the absorbance of the films were found to be high in the ultra violet region with peak around 360 nm.The thickness(using optical interference fringes method) of various films thichness(100,200,300,and 400) nm.The band gap measured was found to be in the range (3.52 -3.78 )eV.